fix(cursor): normalize localized native-shell routing claims

[luvs01]

Summary

Normalize localized Cursor routing commentary that claims a native shell will be used. Preserve the native-shell/allowed-tool boundary while recognizing the supported Korean and English aliases and fragmented streamed text.

Current author verification

Published head 79089a012afa843da87c71d3e89551486ab5fbe5 includes dev snapshot aa91958e3b050084e1edc07dcd66b05ef6eac604. The actual branch connected to this PR was read back after publication. This section replaces older head and validation claims; earlier CI results are historical evidence only.

• Cursor quarantine/corrective-retry tests: 36 pass, 103 assertions.
• Typecheck and structure ownership checks passed on the integrated source. Tests were scoped to the changed contracts; this does not claim that every platform matrix was repeated locally. New file-size ratchet conflicts, where present, were fixed by extracting coherent source or test modules, without raising the baseline or removing assertions.
• Full hosted CI was not multiplied across unchanged implementation merges. The focused integration evidence above and applicable repository checks define this author-validation scope; skipped or unexecuted matrices are not passing results.
• The former-head Windows diagnostic failures concerned POSIX restart fixtures, CLI diagnostic timing, escaped TOML comparison and temporary-folder cleanup. Those are not relabeled green or attributed to this Cursor change; the new-head focused Cursor cases pass.

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Summary by CodeRabbit

• Bug Fixes

  • Routing-commentary checks now recognize Korean localized native-shell phrases, including spacing, punctuation, grammatical suffixes, and phrases split across streamed responses.
  • Localized shell aliases are treated as the same shell tool, preventing duplicate-tool counting and incorrect routing decisions.

• Documentation

  • Updated compatibility, runtime, transport, and provider documentation to clarify localized native-shell handling.

• Tests

  • Added coverage for Korean phrasing, fragmented responses, embedded wording, and shell-alias combinations.

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📝 Walkthrough

Walkthrough

Changes

The Cursor routing-commentary sniffer now recognizes Korean native-shell phrases, including spacing variants and fragmented text deltas. It maps these phrases to the shell identity. Tests and documentation cover the updated guard contract.

Cursor shell routing

Layer / File(s)	Summary
Localized native-shell detection src/adapters/cursor/envelope-echo.ts	The native-tool regex matches 네이티브 셸 and 네이티브 쉘. Undefined capture groups resolve to shell.
Routing-commentary validation tests/providers/cursor/cursor-envelope-echo-retry.test.ts	Tests cover localized aliases, delta fragmentation, repeated shell aliases, code-mode handling, request counts, and exact retry text.
Guard contract documentation structure/providers/cursor.md, structure/adapters/registry.md, structure/data-planes/inbound-compat.md, structure/providers/chat-compat.md, structure/runtime.md, structure/transports/byte-accounting.md, structure/transports/inventory.md, structure/transports/responses.md	Documentation links localized native-shell names to the Cursor routing-commentary guard contract.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Bug fix

Merge Risk: ⚪ Minimal · up to 79089

The change is narrowly scoped, with Korean alias, boundary, fragmentation, and deduplication behavior covered; it is ready to merge.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: normalizing localized native-shell routing claims in Cursor. It matches the implementation and test coverage.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 2…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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Maintainers: @lidge-jun @Ingwannu

[luvs01]

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Codex Review Summary

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Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-14T12:10:29.734120Z	588c333	Manual request

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[chatgpt-codex-connector]

Codex Review: Didn't find any major issues. Swish!

Reviewed commit: fc260e9ce5

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Actionable comments posted: 1

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Inline comments:
In `@src/adapters/cursor/envelope-echo.ts`:
- Line 220: Update ROUTING_NATIVE_TOOL_NAME so the Korean alias alternative
requires a Unicode-aware left token boundary before matching and
canonicalization. Preserve recognition of standalone Korean native-shell aliases
while preventing matches embedded within larger Korean words, avoiding false
multiple-tool detection.

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📒 Files selected for processing (10)

• src/adapters/cursor/envelope-echo.ts
• structure/adapters/registry.md
• structure/data-planes/inbound-compat.md
• structure/providers/chat-compat.md
• structure/providers/cursor.md
• structure/runtime.md
• structure/transports/byte-accounting.md
• structure/transports/inventory.md
• structure/transports/responses.md
• tests/providers/cursor/cursor-envelope-echo-retry.test.ts

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[luvs01]

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Codex Review: Didn't find any major issues. Breezy!

Reviewed commit: 588c33395d

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[lidge-jun]

리뷰 · 우선순위 58 / 80

설명

이 PR(작성자 luvs01, draft)은 Cursor 라우팅 해설(routing commentary) 가드가 한국어로 쓴 네이티브 셸 주장을 도구로 세지 못하던 구멍을 막는다. 지금 dev 의 src/adapters/cursor/envelope-echo.ts 를 보면 ROUTING_TOOL_HINT 에는 이미 네이티브 셸 / 네이티브 쉘 이 들어 있는데, 실제 hallucination 판정에 쓰는 ROUTING_NATIVE_TOOL_NAME 은 영어 shell|read|grep|list|bash 만 잡는다. 그래서 한국어로 '네이티브 셸이 차단되어 exec_command로 전환한다'고 쓰면 힌트는 잡히지만 네이티브 도구 집합이 비어 교정 재시도가 안 나갈 수 있다. 이 PR은 그 비대칭을 없앤다.

고치는 방식은 단순하다. ROUTING_NATIVE_TOOL_NAME 에 유니코드 왼쪽 토큰 경계 lookbehind와 함께 한국어 별칭을 넣고, 매치 그룹이 없으면 shell 로 정규화한다. 그래서 Shell / 네이티브 셸 / 네이티브 쉘 / 공백·탭·따옴표·조사 붙은 형태가 모두 같은 shell 정체성으로 들어간다. 별칭을 여러 번 써도 서로 다른 도구 두 개로 세지 않는다. 실패 주장 + 리다이렉트(또는 진짜로 다른 네이티브 도구 둘) 규칙, 격리, 부작용 보호, 한 번만 교정 재시도하는 범위는 그대로다. CodeRabbit이 지적한 왼쪽 경계도 두 번째 커밋에서 반영됐다.

테스트는 tests/providers/cursor/cursor-envelope-echo-retry.test.ts 에 잘 모아 두었다. 철자·공백·따옴표·괄호 긍정 케이스, 비네이티브 셸 같은 끼워 넣기 부정 케이스, 델타로 쪼개진 이름+리다이렉트, 별칭만 여러 번인 flush 케이스, 그리고 실제 어댑터에서 한국어 조각을 흘려도 첫 주장은 출력에 안 남고 재시도 문구가 CURSOR_ROUTING_COMMENTARY_RETRY_TEXT 인 통합 케이스까지 있다. 작성자 기준 Bun 테스트 36 pass / 103 assertions 이고, base는 현재 tip 4f788f916 와 같다. types.ts / config.ts 분할 캠페인과는 무관하다.

현재 dev 방향(2.56.0, #4546 cost-guard, #4621 key-429 상한, GUI/reauth 레인)과 직접 겹치지는 않는다. 다만 Cursor 외부 턴·code mode에서 한국어 라우팅 거짓 주장이 클라이언트로 새는 실사용 버그라서, 문서 PR보다는 위이고 비용/루프 가드보다는 아래인 58점이다. 약점은 계약 본체인 structure/providers/cursor.md 한 절 외에 adapters/registry·inbound-compat·chat-compat·runtime·byte-accounting·inventory·responses 등 소유권과 먼 structure 문서 상단에 같은 한 문장 링크를 뿌린 점이다. #4621 에서 이미 지적한 ownership 산포 패턴과 같다.

우선순위 58은 '한국어 Cursor 사용자에게 실제로 닿는 가드 구멍 + 테스트가 명확함' 때문에 50대 중반 이상이고, draft·structure 산포·Ready 체크리스트 미완 때문에 60대 중반까지는 안 올린 점수다. 본문 검증에 live Cursor 계정은 쓰지 않았고 synthetic transport fixture만 썼다고 적어 두었으니, 그 범위는 유지해도 된다.

라인 - src/adapters/cursor/envelope-echo.ts ROUTING_NATIVE_TOOL_NAME - 한국어 대안은 capturing group이 없어 match[1] 이 항상 undefined → shell 폴백에 의존한다. 동작은 맞지만, 나중에 한국어 read/grep 별칭을 같은 정규식에 넣을 때 그룹 설계를 다시 잡아야 한다.
라인 - src/adapters/cursor/envelope-echo.ts matchesHallucination Set 매핑 - ?? "shell" 은 영어 매치의 빈 문자열까지 shell로 바꿀 수 있다. 지금은 group1이 도구 이름이라 괜찮지만, 주석으로 '한국어 non-capturing → shell 정규화'를 남기면 유지보수가 쉽다.
경로 - structure/adapters/registry.md 외 6개 ownership 문서 - cursor native-exec와 직접 관련 없는 문서 상단에 동일 문장 링크를 복붙했다. 계약은 structure/providers/cursor.md 한 곳에 두고 나머지는 최소화하는 편이 이 레포 습관에 맞다.
경로 - PR checklist - CI/Codex·CodeRabbit Ready 항목이 비어 있고 draft 유지 중. hygiene/label/enforce-target는 통과했지만 Ready 전 조건으로 보면 미완이다.
심볼 - ROUTING_TOOL_HINT vs ROUTING_NATIVE_TOOL_NAME - 힌트와 카운트 정규식이 또 벌어지지 않게, 한국어 별칭 목록을 한 상수에서 파생하는 쪽이 장기적으로 안전하다(필수는 아님).

메인테이너의 판단이 필요한 지점

• structure 산포 8문서를 걷어 cursor.md(+필요 시 최소 back-link)만 남긴 뒤 머지할지.
• 한국어 shell 정규화를 ?? "shell" 폴백으로 둘지, 명시적 별칭 맵/named group으로 바꿀지.
• draft 해제 전에 hosted CI(작성자 fork run 34841524570) 결과를 tip 기준 성공으로 받아들일지.

너의 추천
draft 유지. structure 산포 문장을 structure/providers/cursor.md 계약 절 중심으로 줄이고, tip 4f788f916 기준 테스트·CI가 초록인지 확인한 뒤에만 Ready로 올린다. 가드 본체와 테스트는 방향이 맞으니 산포만 정리하면 랜딩 후보. types/config 분할과는 무관하니 close-don't-rebase 대상이 아니다.

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